Office 2008 upgrade from Office x cant read previous identities?

I've been reading here for a while, you've all been a great help without knowing it

So now it's time for my first post, I did search but couldn't find anything.
I've just upgraded from Powerbook G4 to Macbook pro. While doing this I treated myself to Office 2008 from Office x. I cant import my previous identities form Office x? Office 2008 doesn't seem to want to read them?

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